NASA's solution: send astronauts to space packing eyewear that allows them to adjust the focus of their lenses depending on the task at hand.

NASA（美国宇航局）的解决方法是：给宇航员配备太空包装眼镜，这使他们能够根据手头的工作内容调整自己的焦距。

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At such times I put my hand on his arm to regain my balance, and say, "you set the pace, I will try to adjust to you."

在这样的时刻，我会挽着他的胳膊保持心理平衡，并且说：“你走你的，我想法儿跟上你。”

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Position and adjust dies on anvil of forging machinery using overhead cranes or other hoisting devices and hand tools.

使用桥式起重机或其他起重设备及手工具定位和调整砧锻压机械的压模。

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